Librarians have long used data to describe their collections. Traditional measures have simply been inputs and outputs: volumes acquired, processed, owned, or circulated. With the growth since the 1990s of cultures of assessment, librarians have sought statistics that are evaluative rather than simply descriptive. More recently, exponentially increasing journal prices and an economic recession have intensified the need to make careful purchasing decisions and to justify these to administrators. A methodical evaluation of a library collection can help librarians understand and meet user needs...
Librarians have long used data to describe their collections. Traditional measures have simply been inputs and outputs: volumes acquired, processed, o...